Originally Posted by dtinker

I think I am just going to drain and flush with engine running so T-stat opens up, etc. I noticed that the pics show changing out the t-stat and gasket. I don't think I will do that unless some really good reason. Car does not get hot, t-stat works fine, no leaks. I assume this is changed more for inspection than for anything else. I am going to buy Zerex GO-5, HOW MUCH SHOULD I buy? I think I will buy the 50-50 premixed, does it take 3 gals?